Passat (B5)
Been looking for a tuner for while for my 1.8t AEB BT. But kinda hard to find one .
lol
My last option its go w wideband conversion and then tune it, but have a few NOOBIE question.
Unitroic sell a wire harness”plug and play” its that all i need to go wideband”+(ecu, and wideband 02”)...